space velocity


Definition of space velocity

  1. 1 :  the velocity of a star's motion relative to the sun as determined from its proper motion, distance, and radial velocity —called also space motion

  2. 2 :  the number of volumes of gas or liquid usually calculated to standard conditions that pass over or through one unit volume (as of a catalyst in a reaction tube) in unit time

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to cast off or become cast off

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